Meta-analysis reveals negative but highly variable impacts of invasive alien species across terrestrial insect orders
Grace L. V. Skinner · Rob Cooke · Helen E. Roy · Nick J. B. Isaac · Charlotte L. Outhwaite · James Rodger · Joseph Millard
期刊Nature Communications / Nat Commun
类型Article
发表2026-01-15 (online)
卷期页17(1): 296
收录2026-10-03
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关键词invasive speciesterrestrial insectsinsect abundancespecies richnessinsect declineColeopteraHemipteraHymenopteraOrthopterainvasive plants
标签—
昆虫对生态系统运作至关重要,但面临诸多威胁,其中入侵外来物种可能是最严重的之一。随着昆虫数量持续下降,越来越多的人需要综合证据来了解入侵外来物种如何影响昆虫,因为历来研究更多关注昆虫作为入侵者而非受害者。本研究涵盖52项研究的318个效应量,我们进行了全球荟萃分析,评估入侵外来物种对陆生昆虫目(鞘翅目、半翅目、膜翅目和直翅目)的影响,并探讨影响这些影响的因素。我们发现入侵外来物种使研究中包含的昆虫数量减少31%,物种丰富度减少26%,尽管这些影响在不同分类单元间差异很大。入侵外来动物的负面影响比入侵外来植物更强烈,而半翅目(真正的昆虫)和膜翅目(蜜蜂、黄蜂、蚂蚁)则相较于鞘翅目(甲虫)的影响更为明显。这些发现为昆虫对入侵外来物种的相对脆弱性提供了定量估计,这是阻止下降的重要一步。
Insects are crucial to ecosystem functioning but face numerous threats, with invasive alien species likely among the most severe. As insect declines continue, there is a growing need to synthesise evidence on how invasive alien species affect insects, as research has historically focused more on insects as invaders than as victims. Here we conduct a global meta-analysis encompassing 318 effect sizes across 52 studies, assessing invasive alien species impact on terrestrial insect orders (Coleoptera, Hemiptera, Hymenoptera, and Orthoptera), and examining factors influencing these effects. We show that invasive alien species reduce the abundance of insects included in our study by 31%, and species richness by 26%, though these impacts are highly variable across taxa. Stronger negative impacts are found for invasive alien animals compared to invasive alien plants, and for Hemiptera (true bugs) and Hymenoptera (bees, wasps, ants) compared to Coleoptera (beetles). These findings provide quantitative estimates for the relative vulnerability of insects to invasive alien species, which is an important step towards halting declines.

@article{skinner2026,
author = {Grace L. V. Skinner and Rob Cooke and Helen E. Roy and Nick J. B. Isaac and Charlotte L. Outhwaite and James Rodger and Joseph Millard},
title = {Meta-analysis reveals negative but highly variable impacts of invasive alien species across terrestrial insect orders},
journal = {Nature Communications},
year = {2026},
volume = {17},
number = {1},
pages = {296},
doi = {10.1038/s41467-025-67925-9},
publisher = {Springer Science and Business Media LLC},
}· END ·